Water Control Structures Selected Design Guidelines Alberta Environment Page 14-1
|
|
- Dwayne Johns
- 6 years ago
- Views:
Transcription
1 Alberta Environment Page LOW LEVEL OUTLET WORKS 14.1 General In general, a low level outlet structure can be used to provide one or more of the following functions: Supply adequate water to meet downstream needs. Facilitate the drawdown of the reservoir during an emergency or to allow for inspection and maintenance work to be carried out. Serve as a diversion structure during construction. Accommodate hydropower generation. The low level outlet structure typically consists of a reinforced concrete intake structure, conduit, gatewell, and terminal structure. A typical arrangement is shown on Figure Structure Location and Layout The structure should normally be sited on the most competent portion of the dam foundation, preferably close to an abutment, so that vertical and horizontal movements (settlement and spreading) that may occur over the length of the structure are minimized. In addition, it is preferred that the low level outlet be located well away from the spillway structure. The gatewell is normally located just upstream from the crest of the dam in order to minimize the pressurized (water) length of conduit that is located within the impervious core of the dam, and to facilitate access Seepage and Drainage Measures Seepage control is ordinarily provided by the impervious backfill placed around the structure as part of the impervious core of the dam embankment. Seepage collars cast directly around the conduits should not be used since they can cause stress concentrations as discussed in Section To prevent piping along the outside wall of the conduit, a zone of filter material, possibly in conjunction with drainage gravel, is normally provided around the downstream end of the conduit, and properly tied in with the drainage measures provided at the terminal structure Intake Structure An intake structure is usually used to provide good entrance conditions into the conduit, and to permit auxiliary appurtenances such as a bulkhead or stop log closure device, trash rack, or fish screen if required, to be installed. The intake structure and conduit are designed to resist the uplift
2
3 Alberta Environment Page 14-2 forces that would occur when the bulkhead or stop log device is in place and the conduit is dewatered, or the trashrack or fish screen becomes plugged. In some instances such as where sediment deposition or water quality is a concern, consideration can be given to providing a high level intake, or an overflow crest with vertical shaft with some features similar to that described in Section Conduit The design of the conduit is discussed in Section For precast concrete pipe, connection details between the pipe and the gatewell structure, where founded on a competent foundation, are as illustrated on Figures 14-2 and An air vent must be provided within the section of each conduit located immediately downstream of the control gate in order to prevent the development of negative pressures and pressure surges. Information for sizing the air vent can be found in Smith (1995). Ideally, the invert at the downstream end of the conduit should be set well above the bed of the outlet channel so that it is free draining and free of ice during the winter in order to facilitate access for inspection and maintenance when the structure is not being operated Gatewell A gatewell is ordinarily provided to house and permit access to the flow control gate. Depending on the type of gate used, the gatewell would operate either as a wet well (slide gate) or a dry well (bonnet gate). The provision of either an upstream emergency bulkhead or guard gate is required to permit inspection and maintenance. Consideration should also be given to providing a smaller diameter bypass pipe system to facilitate the release of small flows without having to operate the primary control gate at partial openings. In some cases, such as where water must be continuously released in order to meet downstream riparian requirements, a gatewell with twin gate bays may be required so that releases can be maintained while the gate in one bay is being serviced. As part of the stability analyses, the wet well should be checked for the case when it is dewatered for inspection or maintenance purposes with the reservoir at FSL, whereas the dry well should be checked for the reservoir at FSL and the peak IDF level. For a specific installation, special care is required in identifying all of the conditions and loading combinations that can occur. Some examples of conditions and loading combinations that may apply for a typical wet well installation are provided below. The load symbols are defined in Section 4.0, and load factors are discussed in Section 9.0.
4
5
6 Alberta Environment Page 14-3 Construction Condition: D+E+V (surcharge) Usual Condition D+E+H FSL (external and internal)+u FSL D+E+H SDF (external and internal)+u SDF Unusual Condition D+ E+ H FSL (external and internal)+q Extreme Condition D+E+H IDF (external and internal)+u IDF D+E+ H FSL (external and internal)+q MDE The wet well should be designed to prevent leakage from the interior of the wet well into the surrounding embankment. Consequently, the resulting crack widths, particularly under Usual Loading Conditions, should be reviewed as discussed in Section Similarly, some examples of conditions and loading combinations that may apply for a typical dry well installation are provided below. The load symbols are defined in Section 4.0, and load factors are discussed in Section 9.0. Construction Condition: D+E+V (surcharge) Usual Condition D+ E+H FSL (external)+u FSL D+ E+H SDF (external)+u SDF Unusual Condition D+ E+H FSL (external)+u FSL +Q Extreme Condition D+E+H IDF (external)+u IDF D+ E+H FSL (external)+u FSL +Q MDE
7 Alberta Environment Page Terminal Structure The terminal structure for a low level outlet structure should preferably consist of a hydraulic jump stilling basin, subject to appropriate tailwater conditions. Where the properties of the outlet channel are too variable or complex to allow for determining reliable tailwater conditions, an impact basin or a baffle chute drop may be used subject to the qualifications outlined in Sections and Erosion protection requirements downstream of the terminal structure are discussed in Sections , , and Cavitation For a low level outlet structure, conditions that can lead to cavitation may exist immediately downstream of the control gate. As a result, the potential for cavitation should be examined and appropriate measures provided as outlined in Section For heads above 45 m, EM (1980) suggests that a metal liner should be provided within the conduit immediately downstream of the gate; however for heads below 45 m, a liner should not be required.
Water Control Structures Selected Design Guidelines Alberta Environment Page 17-1
Alberta Transportation Water Control Structures Selected Design Guidelines Alberta Environment Page 17-1 17.0 MAIN CANAL CONVEYANCE STRUCTURES 17.1 General Conveyance structures typically employed on main
More informationWater Control Structures Selected Design Guidelines Alberta Environment Page 12-1
Alberta Environment Page 12-1 12.0 CHUTE SPILLWAYS 12.1 General Reinforced concrete chute spillways are the most frequently used type of service spillway for providing flood protection for earthfill dams,
More informationVisual Inspection Checklist
APPENDIX Q. Visual Inspection Checklist Thispageintentionallyleftblank. VISUAL INSPECTION CHECKLIST CITY OF AUBURN PUBLIC WORKS DEPARTMENT INSPECTION YEAR: TYPE OF INSPECTION: (Informal, Regular, Formal):
More informationLyon Creek Cedar Way Stormwater Detention Dam Operation and Maintenance Manual
Lyon Creek Cedar Way Stormwater Detention Dam Operation and Maintenance Manual Prepared by: Mike Shaw Stormwater Program Manager City of Mountlake Terrace January 2010 Section I General Information This
More informationDAM INSPECTION CHECKLIST Department of Environmental Protection Bureau of Waterways Engineering Division of Dam Safety
DAM INSPECTION CHECKLIST Department of Environmental Protection Bureau of Waterways Engineering Division of Dam Safety NAME OF DAM: Milltown Dam DEPDAMNO.: 15-146 LOCATION: Municipality: East Goshen Township
More information(b) Discuss in brief shaft spillway with neat sketches. Marks 04. OR Q (2) Explain in brief USBR stilling basin. Marks 08
(b) Discuss in brief shaft spillway with neat sketches. Marks 04 OR Q (2) Explain in brief USBR stilling basin. Marks 08 Stilling Basins The basins are usually provided with special appurtenances including
More informationAnnex V Concrete Structures Removal Plan
Appendix D Annex V Concrete Structures Removal Plan Figure V1 Lower Granite Sequences of Concrete Removal and Cofferdam Figure V2 Little Goose Sequence of Concrete Removal and Cofferdam Figure V3 Lower
More informationTypes of Inspections. Prior to Inspection. Types of Inspections. Typical Inspection Equipment. Embankment Dams
BIA Summer Water Resources Training Dam Safety Inspections Part 4 - Inspections July 28, 2012 Presented by Michael Johnson, Ph.D., P.E. Types of Inspections Periodic Inspections A comprehensive visual
More informationSupplemental Watershed Plan Agreement No. 10 for Neshaminy Creek Watershed Core Creek Dam (PA-620) Bucks County, Pennsylvania
Supplemental Watershed Plan Agreement No. 10 for Neshaminy Creek Watershed Core Creek Dam (PA-620) Bucks County, Pennsylvania Project Authorization USDA's Small Watershed Program is carried out under the
More informationConstruction Inspection Checklists
III. Construction Inspection Checklists 33 Bioretention - Construction Inspection Checklist Project: Location: Site Status: Date: Time: Inspector: Construction Sequence Satisfactory / Unsatisfactory Comments
More informationCreated by Simpo PDF Creator Pro (unregistered version) Asst.Prof.Dr. Jaafar S. Maatooq
Lect.No.9 2 nd Semester Barrages, Regulators, Dams 1 of 15 In order to harness the water potential of a river optimally, it is necessary to construct two types of hydraulic structures, as shown in Figure
More informationDam Safety Inspection Checklist
Dam Safety Inspection Checklist Complete All Portions of This Section (Pre-inspection) Date of Inspection: Name of Dam: EAP: (yes, no) OM&I: (yes, no) File Number: Review Inventory - Highlight missing
More informationPAPERWORK REDUCTION ACT A. GENERAL
U.S. DEPARTMENT OF HOMELAND SECURITY - FEDERAL EMERGENCY MANAGEMENT AGENCY RIVERINE STRUCTURES FORM O.M.B No. 1660-0016 Expires: 12/31/2010 PAPERWORK REDUCTION ACT Public reporting burden for this form
More informationSMALL HYDRO BIG CHALLENGES Renewable Energy World Asia 2016 Martin P. Bieri. September 21, 2016
SMALL HYDRO BIG CHALLENGES Renewable Energy World Asia 2016 Martin P. Bieri September 21, 2016 CONTENT Introduction Potential in Southeast Asia Challenges in Small Hydro Main Design Steps (Bad) Examples
More informationENGINEERING CHECKLIST SEDIMENT & STORMWATER MANAGEMENT BASIN CONSTRUCTION
NEW CASTLE COUNTY DEPARTMENT OF LAND USE ENGINEERING CHECKLIST SEDIMENT & STORMWATER MANAGEMENT BASIN CONSTRUCTION For Permanent Structures, pursuant to Delaware Pond Code 378 and Delaware Sediment and
More informationDTE Energy St. Clair Power Plant
DTE Energy St. Clair Power Plant Unit 6 Scrubber Basins CCR Rule Compliance Project Annual Inspection Report - 2017 Project Number: 60546402 June 30, 2017 Prepared by: 27777 Franklin Road, Suite 2000 Southfield,
More information2017 Annual Dam and Dike Inspection Report
2017 Annual Dam and Dike Inspection Report Bottom Ash Pond Complex Mitchell Plant Wheeling Power Company & Kentucky Power Company Marshall County, West Virginia October 20, 2017 Prepared by: American Electric
More informationDAM AND CANAL SAFETY GUIDELINES
WATER ACT WATER (MINISTERIAL) REGULATION PART 6 DAM AND CANAL SAFETY GUIDELINES Prepared by: Dam Safety and Water Projects Branch Alberta Environmental Protection 8th Floor, Oxbridge Place 9820-106 Street
More informationq Item meets standard Project ID: X Item not acceptable Contractor: N/A Item not applicable Inspector: C Item requires engineer s cert.
SEDIMENT/STORMWATER MANAGEMENT BASIN CONSTRUCTION CHECKLIST For permanent structures per Delaware SCS Pond Code 378 and Delaware Sediment and Stormwater Regulations KEY PROJECT INFORMATION q Item meets
More informationINFLOW DESIGN FLOOD CONTROL SYSTEM PLAN 40 C.F.R. PART PLANT YATES ASH POND 3 (AP-3) GEORGIA POWER COMPANY
INFLOW DESIGN FLOOD CONTROL SYSTEM PLAN 40 C.F.R. PART 257.82 PLANT YATES ASH POND 3 (AP-3) GEORGIA POWER COMPANY EPA s Disposal of Coal Combustion Residuals from Electric Utilities Final Rule (40 C.F.R.
More informationDAM SAFETY INSPECTION REPORT GLENWOOD LAKE DAM CLASS B, INTERMEDIATE HAZARD DAM
May 1, 2013 DAM SAFETY INSPECTION REPORT GLENWOOD LAKE DAM CLASS B, INTERMEDIATE HAZARD DAM Name of Dam: Glenwood Lake Dam Westchester County, NY, NYSDEC ID No. 215-0184 NATDAM ID No. NY13618 Hazard Potential:
More informationAMERICAN ELECTRIC POWER (SWEPCO)
2015 DAM & DIKE INSPECTION REPORT ASH PONDS GERS-15-034 WELSH POWER PLANT AMERICAN ELECTRIC POWER (SWEPCO) CASON, TEXAS NATIONAL INVENTORY NO. TX4357 PREPARED BY GEOTECHNICAL ENGINEERING AEP SERVICE CORPORATION
More informationThe dam authority of Saxony (LTV) is responsible
Three innovative dam rehabilitation schemes in Saxony U. Müller, Landestalsperrenverwaltung des Freistaates Sachsen, Germany Three recent rehabilitation schemes in Saxony involved a number of innovative
More informationDam Safety Guidelines Province of BritishLands Columbia Ministry of Environment, and Parks Water Management Branch Branch Water Management Inspection & Maintenance of Dams ii Canadian Cataloguing in Publication
More informationIrrigation Rehabilitation Program Design and Construction Standards
Irrigation Rehabilitation Program Design and Construction Standards Prepared by the IRP Standards Review Committee For Alberta Agriculture and Rural Development, Irrigation Secretariat April 26, 2010 Adopted
More informationSediment Basin. Fe= (Depends on soil type)
3.9 Sediment Control Description: A sediment basin is an embankment with a controlled outlet that detains stormwater runoff, resulting in the settling of suspended sediment. The basin provides treatment
More informationTemporary Watercourse Crossing: Culverts
Temporary Watercourse Crossing: Culverts DRAINAGE CONTROL TECHNIQUE Low Gradient Velocity Control Short Term Steep Gradient Channel Lining Medium-Long Term Outlet Control Soil Treatment Permanent Symbol
More informationFilter Tube Barriers (Instream)
Filter Tube Barriers (Instream) INSTREAM PRACTICES Flow Control No Channel Flow Dry Channels Erosion Control Low Channel Flows Shallow Water Sediment Control High Channel Flows Deep Water Symbol Photo
More informationROLES AND RESPONSIBILITIES Small Pond Approval. SWM MD-378 Pond Checklist Training 10/17/07. Exemptions EMBANKMENT HEIGHT. Height of Dam Weir Wall
SWM MD-378 Pond Checklist Training 10/17/07 Ken Wolfe Warren Johnson USDA, NRCS Frederick, Maryland ROLES AND RESPONSIBILITIES Small Pond Approval MDE, WMA, Dam Safety Division Authority (COMAR 26.17.04.03)
More informationCity of Charlotte BMP Maintenance and Inspection Check List Grassed Channels / Swales [Note: a separate form must be used for each BMP]
City of Charlotte BP aintenance and Inspection Check List Grassed Channels / Swales [Note: a separate form must be used for each BP] Project Name: Project Address: Owner s Name: Owner s Address: Recorded
More informationBrush layering construction
Brush layering construction Brush layering consists of embedding live branches on successive horizontal rows along contours on the face of a slope. Rooted plants can also be placed among the live branches.
More informationSediment Basins and Skimmers. Jay Dorsey/John Mathews Ohio Dept. of Natural Resources, Division of Soil and Water Resources
Sediment Basins and Skimmers Jay Dorsey/John Mathews Ohio Dept. of Natural Resources, Division of Soil and Water Resources Dewatering Risers in Basins: Single orifice Perforated and wrapped riser And now
More informationModular Sediment Barriers (Instream)
Modular Sediment Barriers (Instream) INSTREAM PRACTICES Flow Control No Channel Flow Dry Channels Erosion Control Low Channel Flows Shallow Water Sediment Control High Channel Flows Deep Water Symbol Photo
More informationSTORM AND SURFACE WATER 4-1 GENERAL...4-1
SECTION 4 STORM AND SURFACE WATER SECTION DESCRIPTION PAGE 4-1 GENERAL...4-1 4-2 STORM DRAINAGE CONVEYANCE SYSTEM DESIGN CRITERIA...4-1 4-2.1 Overview...4-1 4-2.2 Design Flow and Route Requirements...4-2
More informationProper Construction of detention and sediment basins and their conversions
Proper Construction of detention and sediment basins and their conversions By Chris Droste, CESCO Senior Erosion Control Specialist Westmoreland Conservation District Discussed topics Pond embankment construction
More informationSanitary Sewer Extensions, Lift Stations, and Force Mains Engineering Report Form. I. General Information. 1. Name of Facility:
Oklahoma Department of Environmental Quality Water Quality Division Phone: 405-702-8100 Construction Permitting Section 707 N. Robinson, OKC, OK 73102-6010 P.O. Box 1677, OKC, OK 73101-1677 Sanitary Sewer
More informationThe Dalles East Fish Ladder Auxiliary Water System Emergency Operation Backup System Alternatives Columbia River, Oregon-Washington
U.S. Army Corps of Engineers, Portland District (Contract No. W9127N-08-D-0006) Task Order No. 0026 DRAFT Brainstorming Meeting Report The Dalles East Fish Ladder Auxiliary Water System Emergency Operation
More informationAppendix J Hydrology and Hydraulics
Appendix J Hydrology and Hydraulics Marsh Lake Dam Ecosystems Restoration Feasibility Study Hydraulics & Hydrology Appendix January 2011 Contents List of Figures iii List of Tables iii I. General 1 II.
More informationSECTION FACILITY SANITARY SEWERS
SECTION 22 13 13 FACILITY SANITARY SEWERS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification
More informationSECTION 3 DRAINAGE. 3-1 General. 3-2 Drainage Ordinances and Legal Requirements
SECTION 3 DRAINAGE 3-1 General All Drainage plans for proposed development shall be prepared by a Professional Engineer registered in Virginia, except as noted below. Further, their seal and signature
More informationChapter 11 Culverts and Bridges
Chapter 11 Culverts and Bridges Contents 1.0 Introduction... 1 2.0 General Design... 1 2.1 Design Criteria... 1 2.2 Design Flows... 1 2.3 Permitting and Regulations... 1 2.4 Aesthetics and Safety... 2
More informationLOS ANGELES RIVER/RIO HONDO DIVERSION 2 LEVEE SYSTEM LOS ANGELES COUNTY, CALIFORNIA NLD SYSTEM ID #
LOS ANGELES RIVER/RIO HONDO DIVERSION 2 LEVEE SYSTEM LOS ANGELES COUNTY, CALIFORNIA NLD SYSTEM ID # 3805010047 PERIODIC INSPECTION REPORT NO 1 GENERALIZED EXECUTIVE SUMMARY FINAL SYSTEM RATING: UNACCEPTABLE
More informationABOUT US HISTORY PRODUCTS -1-
ABOUT US HISTORY PRODUCTS Waterman Industries of Egypt's product line covers several types of gates and valves in standard sizes for use in potable water, irrigation canals and wastewater treatment plants.
More informationSECTION EXCAVATING, BACKFILLING, AND COMPACTION FOR UTILITIES
SECTION 02221 EXCAVATING, BACKFILLING, AND COMPACTION FOR UTILITIES PART 1 GENERAL 1.01 SUMMARY A. Related Sections: 1. 02200 - Earthwork. 2. 02660 - Water Systems. 3. 02720 - Storm Drainage System. 4.
More informationMr. Paul Dunlap, California Department of Water Resources
Memorandum To: From: Mr. Paul Dunlap, California Department of Water Resources Oroville Dam Spillway Incident Independent Forensic Team Date: September 5, 2017 Re: Interim Status Memorandum Introduction
More informationSECTION STORM DRAINAGE AND STORMWATER MANAGEMENT
SECTION 322 - STORM DRAINAGE AND STORMWATER MANAGEMENT 322.01 DESCRIPTION Work includes all labor, material and equipment to construct storm drain systems and stormwater management facilities, including
More informationNorth and South Dams Project Overview
North and South Dams Project Overview Construction performed by Barnard Pennecon LP Mobilized in late-2015 Anticipated Completion in mid-2019 Major Features of Our Contract Include: Diversion of Churchill
More information9.2 STANDARD CONSTRUCTED WETLANDS
9.2 STANDARD CONSTRUCTED WETLANDS Standard constructed wetlands are stormwater management systems designed to maximize the removal of pollutants from stormwater runoff. Flow is directed through an engineered,
More informationModule 3. Irrigation Engineering Principles. Version 2 CE IIT, Kharagpur
Module 3 Irrigation Engineering Principles Lesson 8 Conveyance Structures for Canal Flows Instructional objectives On completion of this lesson, the student shall learn the following: 1. The need for structures
More informationCITY UTILITIES DESIGN STANDARDS MANUAL
CITY UTILITIES DESIGN STANDARDS MANUAL () September 2017 Page Chapter 1 Acronyms and Definitions 1.01 Purpose 1 1.02 Acronyms 1 1.03 Definitions 3 Chapter 2 Introduction 2.01 Purpose 1 2.02 Applicability
More informationIrrigation System. BWCDD Zanjero Training 2/13/2008
Irrigation System BWCDD Zanjero Training Session #7 2/13/2008 Irrigation System The (main) intake structure t directs water from the source of supply, such as a reservoir or a river, into the irrigation
More informationGeneva Dam. Design of a Steep, Temporary, Riprap Ramp
Geneva Dam Design of a Steep, Temporary, Riprap Ramp A Run-of of-river Dam Analysis for Geneva Dam Credit to: Yu-Chun Su, Ph.D., P.E., CFM David T. Williams. Ph.D., P.E, CFM Presentation Purpose History
More informationChapter A-15. CID-MO Structural Analysis
Kansas Citys, Missouri and Kansas Flood Risk Management Feasibility Study Engineering Appendix to the Final Feasibility Study Chapter A-15 CID-MO Structural Analysis Chapter A-15 CID-MO Structural Analysis
More informationLOS ANGELES RIVER/RIO HONDO DIVERSION 2 LEVEE SYSTEM LOS ANGELES COUNTY, CALIFORNIA NLD SYSTEM ID #
LOS ANGELES RIVER/RIO HONDO DIVERSION 2 LEVEE SYSTEM LOS ANGELES COUNTY, CALIFORNIA NLD SYSTEM ID # 3805010047 PERIODIC INSPECTION REPORT NO 1 GENERALIZED EXECUTIVE SUMMARY FINAL SYSTEM RATING: UNACCEPTABLE
More informationTypes of Hydropower Facilities
Types of Hydropower Facilities 1 Impoundment Hydropower- uses a dam to store water. Water may be released either to meet changing electricity needs or to maintain a constant water level. 2 Run-of-River
More informationAging Outlet Conduits Through Earthen Dams John Harrison, PE Schnabel Dam Engineering, Inc.
Aging Outlet Conduits Through Earthen Dams John Harrison, PE Schnabel Dam Engineering, Inc. PA AWWA Annual Conference April 23, 2015 The Most Important Length of Pipe in your System..is the one through
More informationStandards for Soil Erosion and Sediment Control in New Jersey May 2012 STANDARD FOR SLOPE PROTECTION STRUCTURES. Definition
STANDARD FOR SLOPE PROTECTION STRUCTURES Definition Structures to safely conduct surface runoff from the top of a slope to the bottom of the slope. Purpose The purpose of this practice is to convey storm
More informationPonds. Pond A water impoundment made by excavating a pit, or constructing a dam or an embankment.
POND SITE SELECTION AND CONSTRUCTION Uses, Planning, & Design David Krietemeyer Area Engineer USDA-NRCS June 20, 2008 Uses Considerations for Location of Commonly Used Terms Pond A water impoundment made
More informationJohn Hart Generating Station Replacement Project. May 2017 Community Construction Update Report #47
John Hart Generating Station Replacement Project May 2017 Community Construction Update Report #47 Prepared by: Stephen Watson, BC Hydro (O) 250-755-4795 or (C) 250-616-9888 Twitter: @Puntledge Email:
More informationAnnex I Lyons Ferry Hatchery Modification Plan
Annex I Lyons Ferry Hatchery Modification Plan Table I1 Figure I1 Figure I2 Figure I3 Figure I4 Figure I5 Well Characteristics Lyons Ferry Hatchery Vicinity Map Lyons Ferry Hatchery Site Plan Water Supply
More informationUnited States Army Corps of Engineers. Addicks and Barker Dam Safety Update
United States Army Corps of Engineers Addicks and Barker Dam Safety Update COL Richard P. Pannell District Commander, Galveston District U.S. Army Corps of Engineers March 9, 2016 US Army Corps of Engineers
More informationTUG - Institute of Hydraulic Engineering and Water Resources Management 1
Large Dams Design, Construction and Performance Gerald Zenz Graz - University of Technology 1 Dam Structures & Geotechnique Design Construction / Observation Operation / Monitoring Cooperation & Transfer
More information1 Small Hydro Power Plants Wetzmann
5 th Bulgarian-Austrian Seminar SMALL DAMS AND HPP 30 March 2012, Sofia R.9 REFURBISHMENT OF TWO SMALL HYDRO POWER PLANTS IN AUSTRIA P. Tschernutter Abstract: A weir at the River Gail, which was used for
More information2C-12 Detention Basin Outlet Structures
Iowa Stormwater Management Manual 2C-12 2C-12 Detention Basin Outlet Structures A. Introduction The methods described in Section 2C-9 are used to estimate the volume of the detention storage. The second
More informationEvaluation of New Concrete Shrinkage Reducing Additive for Glen Elder Dam Spillway Inlet Slab Repair
Memorandum Number MERL 2011-34 Evaluation of New Concrete Shrinkage Reducing Additive for Glen Elder Dam Spillway Inlet Slab Repair Missouri River Basin Project Solomon Division Glen Elder Unit - Kansas
More informationChapter 12 Storage. Contents. Overview... 1
Chapter 12 Storage Contents Overview... 1 Implementation of Regional, Sub-regional, and On-site Detention Facilities... 2 Regional Detention... 2 Subregional Detention... 5 Onsite Detention... 6 Detention
More informationStormwater Local Design Manual For Houston County, Georgia
Stormwater Local Design Manual For Houston County, Georgia Adopted November 15, 2005 TABLE OF CONTENTS 1. FORWARD... 1 2. GENERAL LEVEL OF SERVICE STANDARDS... 2 2.1. DETENTION REQUIREMENTS... 2 2.1.1.
More information2017 ANNUAL DAM AND DIKE INSPECTION REPORT
2017 ANNUAL DAM AND DIKE INSPECTION REPORT ASH PONDS WELSH POWER PLANT CASON, TEXAS November, 2017 Prepared by: American Electric Power Service Corporation 1 Riverside Plaza Columbus, OH 43215 GERS-17-067
More informationOutlet Flow Velocity in Circular Culvert
Archives of Hydro-Engineering and Environmental Mechanics Vol. 61 (2014), No. 3 4, pp. 193 203 DOI: 10.1515/heem-2015-0013 IBW PAN, ISSN 1231 3726 Outlet Flow Velocity in Circular Culvert Wojciech Szpakowski
More information2.1 Backfill - General
2.1 Backfill - General Excavations are made for the purpose of constructing bridge substructure elements, and consequently requiring competent backfill material. The backfill material must be adequately
More informationCHAPTER 200 STORM SEWER CONSTRUCTION STANDARDS
CHAPTER 200 STORM SEWER CONSTRUCTION STANDARDS Storm Sewer System: 1. Detention/retention of stormwater runoff shall be provided in accordance with the requirements of the DuPage County Countywide Stormwater
More informationMODEL Stormwater Local Design Manual. City of Centerville
MODEL Stormwater Local Design Manual City of Centerville Adopted December 6, 2005 TABLE OF CONTENTS 1. FORWARD... 1 2. GENERAL LEVEL OF SERVICE STANDARDS... 1 2.1. DETENTION REQUIREMENTS... 1 2.1.1. Discharge
More informationHighway Drainage 1- Storm Frequency and Runoff 1.1- Runoff Determination
Highway Drainage Proper drainage is a very important consideration in design of a highway. Inadequate drainage facilities can lead to premature deterioration of the highway and the development of adverse
More informationEngineering Design Center. Standard Drawings. 1st Edition -January 2016
Engineering Design Center Standard Drawings 1st Edition -January 2016 Golden State Water Company Standard Drawings 1/11/2016 Table of Contents PART A STANDARD DRAWINGS Section I Pipeline Construction P-1
More informationDrainage structure refers to manholes, catch basins, leaching basins, inlets and drop inlets. Drainage structures are designated as follows.
403.01 Section 403. DRAINAGE STRUCTURES 403.01 Description. Adjust, construct, or temporarily lower drainage structures. Clean existing drainage structures and leads as directed by the Engineer. Drainage
More informationTable of Contents. 5-5 Release Rates Year Allowable Release Rate WQCV Release Rate EURV Release Rate...
Chapter 5 Table of Contents 5-1 Introduction... 1 5-1-1 Stormwater Quality Considerations... 1 5-1-2 Stormwater Volume Considerations... 2 5-1-3 Downstream Impacts... 2 5-2 Requirements... 2 5-2-1 General
More informationChapter Table of Contents
Chapter 9 CULVERTS Culverts 9-1 Chapter Table of Contents 9.1 Introduction...9-5 9.2 Policy and Practice...9-5 9.3 Large, Medium, and Small Culverts...9-8 9.4 Sources of Information...9-8 9.5 Culvert
More informationChapter 5 Hydraulic Structures
Chapter 5 Hydraulic Structures 5.1 Flow Splitter Designs 5.1.1 General Design Criteria A flow splitter must be designed to deliver the WQ design flow rate specified in this volume to the WQ treatment facility.
More informationGround Improvement for Mitigation of Failure Risks to Existing Embankment Dams
Ground Improvement for Mitigation of Failure Risks to Existing Embankment Dams by James K. Mitchell, Sc.D., P.E., Dist. M.ASCE University of Alberta, Edmonton, Alberta October 6, 2010 1 SCOPE OF THE LECTURE
More informationAPPENDIX G HYDRAULIC GRADE LINE
Storm Drainage 13-G-1 APPENDIX G HYDRAULIC GRADE LINE 1.0 Introduction The hydraulic grade line is used to aid the designer in determining the acceptability of a proposed or evaluation of an existing storm
More informationPART V - STORM DRAIN DESIGN CRITERIA
PART V - STORM DRAIN DESIGN CRITERIA A. Hydrology Studies and Hydraulic Analyses 1. Drainage area master plans and calculations are to be submitted with all subdivision improvement plans, permit improvement
More informationAPPENDIX A EARTHEN EMBANKMENT. VERSION 1.0 March 1, 2011
APPENDIX A EARTHEN EMBANKMENT VERSION 1.0 March 1, 2011 SECTION A-1: DESCRIPTION OF PRACTICE An earthen embankment is a raised impounding structure made from compacted soil. The embankment is the feature
More informationThis material was downloaded from the website Please contact the PhillyH2O webmaster for more information about this material.
This material was downloaded from the website www.phillyh2o.org Please contact the PhillyH2O webmaster for more information about this material. Modernization and Optimization of Existing Dams and Reservoirs
More informationODOT Design & Construction Requirements for MSE Walls
ODOT Design & Construction Requirements for MSE Walls Peter Narsavage, P.E. Foundation Engineering Coordinator Ohio Department of Transportation Office of Structural Engineering 2006 Ohio Transportation
More informationsupplement scheme The Berg Water Project
Text Larry Mills Chief Resident Engineer (Knight Piésold) larrym@brcsite.co.za Stéfan Malan Resident Engineer: Mechanical & Electrical (Goba) stefanm@brcsite.oc.za The Berg Water Project supplement scheme
More informationCHECK THE LOWER RIGHT CORNER OF EACH DETAIL FOR THE LATEST REVISION.
Standard Drawings Index NOTE: The specifications for materials and workmanship shall conform to the latest edition or the "Standard Specifications for Public Works Construction" published by the North
More informationGeotechnical Design and Factors of Safety
Geotechnical Design and Factors of Safety Technical Bulletin Ontario Ministry of Natural Resources This publication is available online at: Ontario.ca/dams Ces documents sont offerts en anglais seulement
More informationStormwater Management Criteria
FOR OFFICE USE ONLY Stormwater Management Criteria Form #PWU005 (rev. 11/16) Approving Agency Performance Standards Applicability for Control of Stormwater Pollution Applicability for Control of Peak Runoff
More informationThe Enginering Important Components of Jatibarang Dam, Semarang, Indonesia
Proceedings of International Conference : Issues, Management And Engineering In The Sustainable Development On Delta Areas Semarang, Indonesia February 20th, 2015 Paper No. XXX (The number assigned by
More informationWAIKOLOA RESERVOIR NO. 1 EARTHQUAKE REPAIR PROJECT Information Sheet
March 5, 2015 WAIKOLOA RESERVOIR NO. 1 EARTHQUAKE REPAIR PROJECT Information Sheet Overview The purpose of this Project is to repair damages to the Waikoloa Reservoir No. 1 which were sustained during
More informationAnnex O Irrigation Systems Modification Plan
Annex O Irrigation Systems Modification Plan Table O1 Figure O1 Figure O2 Pump Station Data Typical Water Intake Pipeline Routing Map H:\WP\1346\Appendices\FEIS\D - Drawdown\CamRdy\App_D.doc Annex O: Irrigation
More informationACTIVITY: Wet Detention Basin ST 02
Pond surface Outlet Forebay Littoral zone Targeted Constituents Significant Benefit Partial Benefit Low or Unknown Benefit Sediment Heavy Metals Floatable Materials Oxygen Demanding Substances Nutrients
More informationIrrigation Structures 2. Dr. M. R. Kabir
CHAPTER 9 Irrigation Structures 2 Dr. M. R. Kabir Professor and Head, Department of Civil Engineering University of Asia Pacific (UAP), Dhaka LECTURE 22 What is Cross Drainage Works? In an irrigation project,
More informationConstructed Wetland Pond T-8
Constructed Wetland Pond T-8 Description A constructed wetlands pond is a shallow retention pond designed to permit the growth of wetland plants such as rushes, willows, and cattails. Constructed wetlands
More informationFencing, locks on access manholes, and other necessary precautions shall be provided to prevent trespassing, vandalism, and sabotage.
previous start next FINISHED WATER STORAGE 7.0 GENERAL 7.1 TREATMENT PLANT STORAGE 7.2 HYDROPNEUMATIC TANK SYSTEMS 7.3 DISTRIBUTION SYSTEM STORAGE 7.0 GENERAL The materials and designs used for finished
More informationlevel control gates Waterman Industries of Egypt WATERMAN
Automatic level control gates WATERMAN DOWNSTREAM LEVEL CONTROL Waterman Types "A" and "B" Automatic gates provide constant downstream water level control regardless of upstream level conditions or downstream
More informationDistribution Restriction Statement Approved for public release; distribution is unlimited.
CECW-EH-Y Engineer Regulation 1110-8-2(FR) Department of the Army U.S. Army Corps of Engineers Washington, DC 20314-1000 Engineering and Design INFLOW DESIGN FLOODS FOR DAMS AND RESERVOIRS ER 1110-8-2(FR)
More informationSTORMWATER MANAGEMENT
DRAINAGE SOLUTIONS SINCE 1908 STORMWATER MANAGEMENT STORMWATER TREATMENT AND FLOW CONTROL ENVIRONMENTAL PROTECTION EASE OF MAINTENANCE RELIABLE PERFORMANCE ARMTEC.COM STORMWATER TREATMENT Armtec is excited
More informationExtended Detention Basin (EDB) Sedimentation Facility
Extended Detention Basin (EDB) Sedimentation Facility Description An extended detention basin (EDB) is a sedimentation basin designed to totally drain dry sometime after stormwater runoff ends. It is an
More informationPARR HYDROELECTRIC PROJECT PARR HYDRO DEVELOPMENT & FAIRFIELD PUMPED STORAGE FACILITY DEVELOPMENT FERC PROJECT No SC SEPTEMBER 19, 2012
PARR HYDROELECTRIC PROJECT PARR HYDRO DEVELOPMENT & FAIRFIELD PUMPED STORAGE FACILITY DEVELOPMENT FERC PROJECT No. 1894 - SC SEPTEMBER 19, 2012 PARR AND FAIRFIELD LOCATIONS Lockhart Neal Shoals Monticello
More information